Windmill



W. BARNES.

WINDMILL.

(No Model.)

No. 275,457.v

Patented Apr. 10,1883.

mne ss es:

f77/Venier;

N. PETERS. PhowLimugnphnr. waahingmn. D C.

A UNITEn STATES PATENT OFFICEO lWILSON BARNES, or MAQUOKETA, IOWA.

WINDMlLL.

SPECIFICATION forming part of Letters'latent No. 275,457, dated April Application filed February 9, 1883. (No model.)

' zen ofthe United States, residing at Maquolieta, in the county of Jackson and State of Iowa, have invented certain new and useful Improvements in Windmills, of which the tol-l lowing is a specification, reference being had therein to the accompanying drawings.

This invention relates to improvements in windmills, the construction of which will rst be described, and the parts or combinations constituting the invention will then be designatedin the claims.

In the drawings hereto annexed, Figure l '"\-r5--isvanw-elevation of the mill. Fig. 2 is a side view of one of' the segment-fans. Fig. 3 is a side .view of the shield. Fig. 4 is a detail view (section) of the drive-shaft step-boX.

The mill is of the vaueless type-that is,one iu which the wheel is so hung as to 4readily shift with the wind, and thereby always hang to the Windward of the tower on which it is pivoted. The letter A designates the tower, at the top of which is a plate, B, which serves as a bearing for the turn-table C, mounted on the tubular turn-post C. The lower end of the turn-post has bearing in the step-box D on the tower. This box has a central hole, a, for the passage -of the hollow drive-shaft Gr, and an upwardprojecting annular curb, b, around the hole, said curb being'large enough to leave au annular seat, c, inside. A short tube, d, is provided with a flange, e, which sets upon the curb, while the lower end ofthe tube sets down on the seat c inside of the curb. The top ot' the flange constitutes the seat for the tubular turn-post,4 and the upper end of the short tube d projects up into the post, while a set-screw, d', secures the tubular post and the short tube. It will thus be seen the whole weight of the mill bears on the box D, and the h ookfbolt f, which projects over the auge e, serves to keep the post and the' turn-table to its position in the step.

The shaft E, which carries the wheel-hub F, is mounted in a tubular bearing, G2, of the turn-table. The inner end of this shaft carries a pinion, E, which gears with another pinion, G', on the upper end of the drive-shaft.

The windmill is of the segment class, the

pivoted segment-fansHof which are regulated or turned iu or out the wind by a rod, I. At the `outer end of the shaft E is a head, J,

and on the opposite side of the wheel-hub,

mount-ed loosely so as to slide on the shaft, is another head, J. These two heads are connected by jointed bars J2, aud each rod I connects oneof thejointed bars with the pivotingbar of one of the segment-fans of the wheel. The turn-table has, on the opposite side from the wheel, a right-angled lever, K, and a drawbar, L, has one end connected with one arm of this lever, and said draw-bar is branched, one branch extending each side of the pinion E and along each side of the shaft E and tubular bearing G2, and, passing through a guide,

g, on each side of the bearing, connects with the slide-head J. It will thus be seen that when the horizontal arm of lever K is raised or lowered the slide-head J is moved toward or away from the wheel-hub, and the jointed bars J2 are thereby spread or contracted, the effect of which is to push or pull on the rods I, whereby the pivoted segment-.fans are thrown out of or into the wind in a well-known manner. Each segment-fan is provided on the inner or 'small end with weights N, which, when the speed of the wheels revolution is increased by a high wind, exercise a centrifugal force, and thereby serve to turn the segment out of the wind.

A tie-rod, h, connects each two of the wheel arms F', and atop bar, m, is attached to the pivoting-bar P of each of the segment-fans. When the segments are thrown out of gear the stop-bars have bearing against the tie-rods and serve to stay the fans, avoid wear of the parts by preventing play, and prevent clatt-er and rattle when the mill is at rest.

The step-box R supports the hollow driveshaft G. An upward-projecting fixed pivot, n, is integral with the box, and said pivot has a hole through it vertically for the passage of the shipping-rod t. The step also has an upward-projecting annular curb, s, around the fixed pivot. lt will be seen the end of the hollow drive-shaft sets down over the fixed pivot and within the curb. Thus the end of the said shaft occupies a step, which is practically a cup, whereby said shaft may be kept constantly oiled.

ICO

A standard, T, is made fast at about the same point where the right-angled lever K is pivoted. A bar, L, is pivoted at l on the standard, and one end of said bar is connected to the horizontal arm ofthe lever K by a linkrod, 2, while the shipping-rod t is connected to the other end of the bar. through the pinion G', the driveshaft, and the fixed pivot 11, a ring; attached at its lower end, serving as means by which to draw it. It will be seen that when the rod t is drawn on the effect is to raise the horizontal arm of the lever K,which moves the slide-head J toward the wheel-hnh. An adjustable Weight, K', is secured to the horizontal arm of the lever, and this weight is sullicient to keep the segmentfans standing normally into the Wind.

The figure representing ahorse is simply an ornamental weight mounted on the standard T, and serves to eounterpoise the weight of the wheel.

The slide-head J'and adjacent parts are protected'frotn the weather by a hood or shield, U, (shown in section in Fig. 1,) secured to the tubular bearing C2 bythe part u. This shield is arched so as to cover the slide head above, but not to interfere with its revolution, and its arrangement is sueh that it does not hinder the movement of the draw-bars L.

A bevel-pinion, lv, is secured on the lower end of the drive-shaft,(which in the drawings is broken for the purpose of shortening it to This rod t passes suit the sheet,) and drives a horizontal shaft,

w, which carries a crank-head, w. By this means attachment may readily he made to a pump or to any light machinery.

Havingdescribed myinvention, I claim and tslesire to secure hy Letters Patent of theUnited tates- 1. In a windmill, the described construction,

to Wit: the tubular turn-post C', having at its lower end a tube, d, provided with a flange, e, ay step-box, D, having an annular curb, b, and a hook-bolt,f, secured to the box and projecting over the said liange, as set forth.

2. The combination ot' the shaft E, wheelhnb F, and head J, fixed to the shaft, a slidehead,J'. loosely mounted on the shaft, jointed hars J2, connecting the fixed head land slide head, pivot segment-fans, and rods l to connect the jointed bars and fans, as set' forth.

3. In a windmill having pivoted segment fans, the eombination,with the fans, of a stophar, m, attached thereto, and a tie-rod, h, eon necting each two wheel-arms, whereby when the fans are ont of the wind they are stayed 'by the stop-hars resting against the tie-rods,

as set forth.

In testimony whereof I atiix my signature in presence of two witnesses.

WILSON BARNES. \Vitnesses:

F. P. MITCHELL, Jas. BARNES. 

